Pith Number

pith:GB4C4DVU

pith:2010:GB4C4DVUMYOCPDBONJR6CFKLGK

not attested not anchored not stored refs pending

Early Spectroscopy of the 2010 Outburst of U Scorpii

2), (2) Hiroshima Astrophysical Science Center, (4) Department of Biosphere-Geosphere System Science, (5) Koyama Astronomical Observatory, Akira Arai (5), Faculty of Informatics, Hiroshima University, Hiroshima University (3) Fujii Kurosaki Observatory, Kazuyoshi Imamura (4), Kenji Tanabe (4), Kiyoshi Sakimoto (1), Koji S. Kawabata (2), Kyoto Sangyo University), Mahito Sasada (1), Makoto Uemura (2), Masayuki Yamanaka (1, Michitoshi Yoshida (2) ((1) Department of Physical Science, Mikiha Nose (4), Mitsugu Fujii (3), Nanae Kunitomi (4), Okayama University of Science, Osamu Nagae (1), Ryosuke Itoh (1), Takako Okushima (1), Takashi Ohsugi (2), Tatsuya Harao (1), Tomoyuki Komatsu (1)

arxiv:1008.2843 v1 · 2010-08-17 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GB4C4DVUMYOCPDBONJR6CFKLGK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:05:47.572597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30782e0eb4661c278c2e6a63e1154b32a617e85b775fa21ccca6ef17868e4da3

Aliases

arxiv: 1008.2843 · arxiv_version: 1008.2843v1 · doi: 10.48550/arxiv.1008.2843 · pith_short_12: GB4C4DVUMYOC · pith_short_16: GB4C4DVUMYOCPDBO · pith_short_8: GB4C4DVU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/GB4C4DVUMYOCPDBONJR6CFKLGK \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 30782e0eb4661c278c2e6a63e1154b32a617e85b775fa21ccca6ef17868e4da3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "501e3cbec8f3bf479284278cd4620b0769a9ee288171b52fe60fed68d961c3e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-08-17T07:55:25Z",
    "title_canon_sha256": "fd32721a192802cb48cd3f5cbb4fdb521b9be6815a27a36222bf9580d4161d68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2843",
    "kind": "arxiv",
    "version": 1
  }
}